<!DOCTYPE html>
<html lang="en">
<head>
    <meta charset="UTF-8">
    <meta http-equiv="X-UA-Compatible" content="IE=edge">
    <meta name="viewport" content="width=device-width, initial-scale=1.0">
    <title>Document</title>
</head>
<body>
    <div id="root"></div>
    <script src="https://unpkg.com/react@18/umd/react.development.js" crossorigin></script>
    <script src="https://unpkg.com/react-dom@18/umd/react-dom.development.js" crossorigin></script>
    <script src="https://unpkg.com/babel-standalone@6/babel.min.js"></script>
    <script type="text/babel">
        const MyComponent = function(){
            let [count,setCount] = useState(0);
            const handleClick = function(){
                console.log("handle")
            }
            return <div>
                        计数器：{count}
                        <input type="button" value="ok" onClick={handleClick} />
                       
                    </div>
        }
        ReactDOM.createRoot(document.getElementById("root")).render(<MyComponent />);
    </script>
</body>
</html>